Natural wood gliding window

ABSTRACT

A wooded thin-line window is provided with jambs, head and sill substantially identical in cross-section. A fixed lite and sliding ventilator are each comprised of identical horizontal and vertical frame members. Interlock members are strengthened by being bonded to each respective inner vertical frame member of the ventilator and fixed lite with the grain direction between an interlock and its respective frame member being approximately at right angles. The sill is provided with an upwardly facing concave cut-out terminating downwardly in an elongated notch which is ported to the exterior of the window. A pair of spaced outwardly convex glides support the ventilator on the concave cut-out. A storm window is detachably mounted on the window frame.

Anderson [4 1 Sept. 9, 1975 NATURAL WOOD GLIDING WINDOW [75] Inventor: Ernest L. Anderson, Bellevue,

Wash.

[73] Assignee: Nanco Corporation, Bellevue, Wash.

[22] Filed: June 24, 1971 21 Appl. No.1 156,321

Primary ExaminerKenneth Downey Attorney, Agent, or Firm-Seed, Berry, Vernon & Baynham [57] ABSTRACT A wooded thin-line window is provided with jambs, head and sill substantially identical in cross-section. A fixed lite and sliding ventilator are each comprised of identical horizontal and vertical frame members. Interlock members are strengthened by being bonded to each respective inner vertical frame member of the ventilator and fixed lite with the grain direction between an interlock and its respective frame member being approximately at right angles. The sill is provided with an upwardly facing concave cut-out terminating downwardly in an elongated notch which is ported to the exterior of the window. A pair of spaced outwardly convex glides support the ventilator on the concave cut-out. A storm window is detachably mounted on the window frame.

8 Claims, 7 Drawing Figures PHENTEU 91975 3, 903 .650

FIG 41-.

' mvsmoli ER NEST L. ANDERSON 3f @aww m v ATTORNEYS NATURAL WOOD GLIDING WINDOW BACKGROUND OF THE INVENTION 1. Field of the Invention This application pertains to sliding ventilator windows manufactured from wood.

2. Description of the Prior Art l-Ieretofore the construction industry has employed aluminum or other synthetic material for use in manufacturing sliding ventilator windows because the equivalent wooden windows were generally too thick; thus presenting construction difficulties and poor appearance. Furthermore wooden windows would generally bind or otherwise become difficult to operate after a change in humidity or temperature. Synthetic materials, however, have never matched the insulative qualities and pleasing grain structure of natural wood. Thus the industry has long sought a solution to the problems incident to the use of wood for sliding ventilator windows.

SUMMARY OF THE INVENTION It is an object of this invention to provide a sliding ventilator window framed solely of wood.

It is another object of this invention to provide a sliding ventilator window which is thin in overall thickness and can be manufactured from a relatively few shapes.

It is another object of this invention to provide a sliding ventilator natural wood window which has highstrength interlocks derived from the securement thereto of window frame members having their grain direction opposite that of the interlock members.

It is another object of this invention to provide a sliding ventilator wooden window which will not bind or become difficult to operate with changes in temperature and humidity or the presence of dirt particles.

Another object is to provide an easily removable storm window for use on the thin-line window frame of this invention.

Basically some of these objects are obtained by making the window frame members of one cross sectional shape and the head, jambs and sill of another substantially identical shape to reduce construction cost during the manufacture of the windows. The inner frame members for the sliding ventilator and the fixed lite are secured with their grains reversed to a respective interlock member to strengthen the interlock.

A unique feature is that the jamb has a cut-out defined by upwardly diverging surfaces which are drained to remove moisture and dirt. The bottom of the ventilator is provided with glides having support surfaces which ride on the diverging surfaces of the jamb cutout so that contraction of the cut-out will force the ventilator upwardly rather than cause binding.

Still further the storm window nests in recesses in the window frame and is removably hinged for ease of installation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric of a wooden sliding ventilator window embodying the principles of the invention.

FIG. 2 is a vertical section taken along'the line 22 of FIG. 1.

FIG. 3 is a vertical section taken along the line 3-3 of FIG. 1.

FIG. 4 is a horizontal section taken along the line 44 of FIG. 1.

FIG. 5 is a front elevation of the window shown in FIG. 1 with parts broken away for clarity.

FIG. 6 is a fragmentary detail showing one of two hinges employed to secure the storm window to the window frame.

FIG. 7 is a detail of the locking mechanism provided on the window.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred form of the invention includes a natural wood framework comprising a head 10, righthand jamb ll, sill l2 and left hand jamb 13 which are bonded or otherwise held together with suitable screws. Mounted in this peripheral framework is a slidable ventilator l4 and a fixed lite 16. The slidable ventilator is locked by a conventional locking mechanism 18 having a latch 18a slidable over a cam 18b. As is well known the slidable ventilator is opened by sliding it to the left as shown in FIGS. 1 and 4.

As is best shown in FIGS. 2 and 3 the head 10, jambs 11 and 13, and sill 12 are substantially identical in cross section. The advantage of this is that a single pattern may be employed during manufacture of the window with the workman having to determine only the length of each piece. Modification of this framework occurs solely in the head.

Each of the head, jambs and sill is provided with a cutout 20 that extends along the entire length of each piece. In the head 10, the portion of this cut-out adjacent the fixed lite 16 is of a greater cross section as shown in FIG. 2, than the portion of the cut-out on the opposite end of the window as shown in FIG. 3. In the head, the portion of the cut-out of lesser cross sectional width is provided with downwardly concave or diverging guide surfaces 24 and 26 intersected by an elongated notch 28. The guide surfaces restrain the top of the ventilator against lateral movement. The purpose of the greater cross sectional width of the cut-out portion adjacent the fixed lite is to allow the ventilator to be raised so that the lower end thereof may be swung to the right in FIG. 2 clear of the sill 12 for removal. The jambs and the sill are each provided with a cut-out portion identical to that shown in the right hand side of the head 10, that is, with concave guide surfaces 24 and 26 and an intersecting notch 28.

Sliding ventilator 14 is provided with an outer vertical frame member 30, an inner vertical frame member 32, an upper horizontal frame member 34, and a lower horizontal frame member 36. As best shown in FIG. 3 the upper horizontal frame member fits within the cutout 20 of the head 10 and is provided on either side with weather stripping 38 to form a weather-tight seal.

The cut-out 20 in the sill 12 is uniquely employed to support the sliding ventilator. For this purpose the lower horizontal frame member 36 of the slidable ventilator 14 is provided with a pair of spaced glides 40 having downwardly facing convex support surfaces 42 which rest on the surfaces 24 and 26 and span the elongated notch 28. As is thus readily apparent contraction of the cut-out by swelling of the wood of the sill 12 will not squeeze against the lower frame 36 but rather will cause the sliders 40 to slide upwardly along the surfaces 24 and 26 while maintaining a free sliding engagement with the cut-out surfaces. Seals or weather stripping 38 are provided between the lower frame member 36 and the surfaces of the cut-out 20. In the event that moisture does condense or otherwise accumulate in the cutout it is drained downwardly into the notch 28 and removed via a pair of spaced drain ports 44 which intersect the notch 28 and extend outwardly to the outside of the sill.

The weather stripping 38 extends around both sides of the upper 34, lower 36 and the outer vertical frame member 30 of the slidable vent 14. Weather stripping is also provided on the interior facing surface of the inner frame member 32.

As best shown in FIG. 4 the inner frame member 32 of both the fixed lite 16 and the slidable vent 14 are each bonded to a respective interlock member 50 and 52. These interlock members are substantially identical. The interior or sliding ventilator interlock member 50 is provided with a handle 50a for opening and closing the slidable vent. A unique feature of this invention is that the interlock members are maintained substantially thin in width from left to right in FIG. 4 and are strengthened against buckling by bonding the respective inner members 32 to the interlock members with the grains between the two being approximately at right angles. Each of the interlock members 50 and 52 is pro vided with an interengaging end 50b and 52b respectively. The ends overlap one another when the sliding ventilator is closed to provide further sealing between the fixed lite and slidable ventilator.

Glass in the fixed lite 16 is mounted in recesses 70 in the head, sill and outer-jamb and in the inner frame member 32. The glass is held by glazing strips 71 stapled or otherwise secured to the framework.

The jambs, head and sill are each provided with an exteriorily facing recess 60 which advantageously can receive a storm window 62. The storm window in the preferred embodiment contains two sections hinged together at top and bottom as at 64. Weather stripping or other sealing means 67 are provided around the frame of the storm window. Each hinge includes a pin 65 which is pivotally received in a bracket 66 secured to the interlock member 52. The pins 65 can be lifted from the brackets for removing the storm window. A handle 68 is provided for opening the section of the storm window adjacent the sliding ventilator 14.

While the preferred form of the invention has been illustrated and described it should be understood that the invention is not to be limited thereto. It should also be understood that the invention is capable of modification while still falling within the principles thereof. Accordingly the invention is to be limited only by a literal interpretation of the claims appended hereto.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A wooden window having a fixed lite and a sliding ventilator each having a vertical interlocking member, interconnected jambs, sill and head for receiving the fixed lite and sliding ventilator, said head having an elongated horizontal downwardly facing opening for slidably receiving the ventilator, said sill having a cutout defined by spaced upwardly diverging surfaces, glide means secured to the underside of said ventilator and having downwardly facing slide surfaces supported on said cut-out diverging surfaces whereby contraction of said cut-out diverging surfaces will slide the ventilator upwardly to prevent binding between the ventilator and the sill, and means for removing moisture from between said downwardly facing slide surfaces and said cut-out diverging surfaces, said cut-out diverging surfaces including spaced concave surfaces, said cut-out including en elongated notch intersecting said concave surfaces, said support surfaces of v said glide means spanning said notch, and said moisture removing means including drain bores intersecting said notch and terminating below and to the exterior of said sill.

2. The window of claim 1 said glide means including two spaced low-friction slides.

3. The window of claim 1 said downwardly facing opening of said head including an enlarged vertical cross section adjacent said fixed lite for allowing upward movement of said ventilator for removal thereof and a partially filled cross section throughout the re maining portion of the downwardly facing opening for restricting upward movement of the ventilator and thus precluding removal of the ventilator.

4. The window of claim 1 said jambs, sill and head having substantially identical cross sectional shapes,

and said ventilator and fixed lite having identical cross sectional, vertical andhorizontal frames wherein construction of said window requires a minimum of shapes.

5. The window of claim 2 said inner vertical frames of said ventilator and fixed lite being secured to interlock members, and the direction of grain in each interlock member being generally opposite the direction of the grain in its respective adjoined frame for increasing the strength of the interlock members.

6. A natural wood, easily manufactured, thin gliding window comprising substantially identical crosssectional head, jambs and sill each having an inwardly facing concave cut-out terminating outwardly in a notch of reduced cross-sectional dimension, a fixed lite and an active sliding ventilator each containing a glass pane retained in identical cross-sectional vertical and horizontal frames, said fixed lite and sliding ventilator each having an interlock member secured to an inner frame of the fixed lite and ventilator, said interlock member having interengaging locking edges adapted to abut one another for sealing the opening between the fixed lite and ventilator, each said interlock member and the respective inner frame of the fixed lite and sliding ventilator having generally reversed grains for increasing the buckling strength of the interlock member, and means for releasably locking the ventilator against sliding movement, said horizontal and vertical outer frames of said ventilator being inserted into said con cave cut-outs of said head, jamb and sill to hold, guide seal the ventilator within said head, jamb and sill, said lower horizontal ventilator frame having outwardly facing guide, means of convex curvature resting in said concave cut-out of said sill wherein said ventilator is supported in said sill solely by said glide means, said sill having drain openingsaintersecting said notch and opening below and exteriorly of the sill for removing moisture from the concave cut-out of the sill.

7. A natural wood easily manufactured thin gliding window comprising head, jambs, and sill, a fixed lite and an active sliding ventilator containing a glass pane retained in vertical and horizontal frames, said fixed lite and sliding ventilator each having an interlock member secured to an inner frame of the fixed lite and ventilator, said interlock members having interengaging locking edges adapted to abut one another for sealing the opening between the fixed lite and ventilator, each said interlock member and the respective inner frame of the fixed lite and sliding ventilator having generally reversed grains for increasing the buckling strength of the inner frames and interlock member in the direction perpendicular to the plane of the glass panes, each of said interlock members extending for a depth greater than the thickness of the respective inner frames of the fixed lite and ventilator so that the interlock members increase the sectional-modulus of the frames to increase the deflection strength of the frames in a direction perpendicular to the plane of the glass panes, and means for releasably locking the ventilator against sliding movement.

8. The window of claim 7 wherein each of said fixed each other. 

1. A wooden window having a fixed lite and a sliding ventilator each having a vertical interlocking member, interconnected jambs, sill and head for receiving the fixed lite and sliding ventilator, said head having an elongated horizontal downwardly facing opening for slidably receiving the ventilator, said sill having a cut-out defined by spaced upwardly diverging surfaces, glide means secured to the underside of said ventilator and having downwardly facing slide surfaces supported on said cut-out diverging surfaces whereby contraction of said cut-out diverging surfaces will slide the ventilator upwardly to prevent binding between the ventilator and the sill, and means for removing moisture from between said downwardly facing slide surfaces and said cut-out diverging surfaces, said cut-out diverging surfaces including spaced concave surfaces, said cut-out including en elongated notch intersecting said concave surfaces, said support surfaces of said glide means spanning said notch, and said moisture removing means including drain bores intersecting said notch and terminating below and to the exterior of said sill.
 2. The window of claim 1 said glide means including two spaced low-friction slides.
 3. The window of claim 1 said downwardly facing opening of said head including an enlarged vertical cross section adjacent said fixed lite for allowing upward movement of said ventilator for removal thereof and a partially filled cross section throughout the remaining portion of the downwardly facing opening for restricting upward movement of the ventilator and thus precLuding removal of the ventilator.
 4. The window of claim 1 said jambs, sill and head having substantially identical cross sectional shapes, and said ventilator and fixed lite having identical cross sectional, vertical and horizontal frames wherein construction of said window requires a minimum of shapes.
 5. The window of claim 2 said inner vertical frames of said ventilator and fixed lite being secured to interlock members, and the direction of grain in each interlock member being generally opposite the direction of the grain in its respective adjoined frame for increasing the strength of the interlock members.
 6. A natural wood, easily manufactured, thin gliding window comprising substantially identical cross-sectional head, jambs and sill each having an inwardly facing concave cut-out terminating outwardly in a notch of reduced cross-sectional dimension, a fixed lite and an active sliding ventilator each containing a glass pane retained in identical cross-sectional vertical and horizontal frames, said fixed lite and sliding ventilator each having an interlock member secured to an inner frame of the fixed lite and ventilator, said interlock member having interengaging locking edges adapted to abut one another for sealing the opening between the fixed lite and ventilator, each said interlock member and the respective inner frame of the fixed lite and sliding ventilator having generally reversed grains for increasing the buckling strength of the interlock member, and means for releasably locking the ventilator against sliding movement, said horizontal and vertical outer frames of said ventilator being inserted into said concave cut-outs of said head, jamb and sill to hold, guide and seal the ventilator within said head, jamb and sill, said lower horizontal ventilator frame having outwardly facing guide means of convex curvature resting in said concave cut-out of said sill wherein said ventilator is supported in said sill solely by said glide means, said sill having drain openings intersecting said notch and opening below and exteriorly of the sill for removing moisture from the concave cut-out of the sill.
 7. A natural wood easily manufactured thin gliding window comprising head, jambs, and sill, a fixed lite and an active sliding ventilator containing a glass pane retained in vertical and horizontal frames, said fixed lite and sliding ventilator each having an interlock member secured to an inner frame of the fixed lite and ventilator, said interlock members having interengaging locking edges adapted to abut one another for sealing the opening between the fixed lite and ventilator, each said interlock member and the respective inner frame of the fixed lite and sliding ventilator having generally reversed grains for increasing the buckling strength of the inner frames and interlock member in the direction perpendicular to the plane of the glass panes, each of said interlock members extending for a depth greater than the thickness of the respective inner frames of the fixed lite and ventilator so that the interlock members increase the sectional-modulus of the frames to increase the deflection strength of the frames in a direction perpendicular to the plane of the glass panes, and means for releasably locking the ventilator against sliding movement.
 8. The window of claim 7 wherein each of said fixed lite and sliding ventilator vertical and horizontal frames are of identical cross-section and each has an outwardly facing notch generally in the plane of the glass pane, each said interlock member having an elongated boss, the notches in the outer surfaces of said inner vertical frames of said respective fixed lite and sliding ventilator receiving said elongated bosses so as to position the interlock members of the fixed lite and sliding ventilator and properly align the interlock members with each other. 